Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 7 Complete, well-documented, and agent-ready

Microsoft Azure Diagnostics APIThe Diagnostics API from Microsoft Azure — 25 operation(s) for diagnostics.74.9 tidb Diagnostics APIEndpoints for downloading debug information and managing server diagnostics.74.8 CarsXE OBD Codes Decoder APIMatches an OBD-II diagnostic trouble code (DTC) to a human-readable vehicle fault description for use in se...73.5 CarsXE Year Make Model APIVehicle lookup without a VIN — 3 operations (getYearMakeModel, getYearMakeModelOptions, decodeObdCode) retu...73.5 BigPanda Reporting APITroubleshooting logs and multi-context report generation.69.9 Microsoft Azure Functions Diagnostics APIThe Diagnostics API from Microsoft Azure Functions — 22 operation(s) for diagnostics.68.8 Microsoft Azure API Management Diagnostic APIThe Diagnostic API from Microsoft Azure API Management — 2 operation(s) for diagnostic.67.3

Strong 7 Solid coverage with minor gaps

Particle Diagnostics APIThe Diagnostics API from Particle — 4 operation(s) for diagnostics.63.7 Graphiant Diagnostic APIThe Diagnostic API from Graphiant — 21 operation(s) for diagnostic.58.8 Truepill Diagnostics APIAt-home diagnostics — test catalogue, kit serial validation, order creation and registration, rejection det...58.2 Ripple Labs Diagnostics APIUse these operations to view RippleNet Server health. | Operation | Method | Description | | -- | -- | -- |...57.7 Azure Network Watcher APIMonitor, diagnose, and gain insights into network performance and health in Azure. Network Watcher provides...56.8 Conviva Sessions V3 APISession-level detail for content and ad sessions, including per-viewer session diagnostics, network_info wi...55.6 Azure Virtual Machine Run Commands REST APIREST API for executing scripts and commands on Azure Virtual Machines without requiring direct network conn...54.4

Developing 21 Usable, with meaningful gaps to close

Soracom Diagnostic API[Diagnostic features](/en/guides/diagnostic/)54.1 Soracom Stats and Diagnostics APIRetrieve cellular data usage statistics (per SIM/subscriber/group/account), API and Napter audit logs, oper...54.1 NetBackup Troubleshooting APIAPI for status code resolution and error reference to assist with troubleshooting NetBackup issues.52.4 LetsGetChecked Orders API (Version 1)Version 1 of the LetsGetChecked Orders API. Create a pre-activated test-kit order against a client-supplied...50.8 LetsGetChecked Orders API (Version 2)Version 2 of the LetsGetChecked Orders API, documented September 2023. Adds an order-item model with per-it...50.8 KORE Wireless Diagnostics APIThe Diagnostics API from KORE Wireless — 2 operation(s) for diagnostics.50.5 Openwork Diagnostics APIThe Diagnostics API from Openwork — 2 operation(s) for diagnostics.50.1 Apache APISIX Diagnostics APIRuntime diagnostic operations.48.8 Delinea Diagnostics APIView diagnostics information48.8 Windows Event Log APIAPI for instrumenting, querying, and consuming event logs on Windows Server for diagnostics, monitoring, an...48.3 meditech Diagnostic APIDiagnostic reports (lab, radiology, pathology)47.3 AMCS Group Diagnostics APIThe Diagnostics API from AMCS Group — 1 operation(s) for diagnostics.46.4 Roku Diagnostics APIDeveloper-mode diagnostics and performance counters45.0 AimDK Protocol (Link-U OS Robot Interface)The AimDK protocol is AgiBot's first-party Protocol Buffers definition of its robots' interfaces, published...44.6 Oracle WebLogic Server Diagnostics APIWebLogic Diagnostic Framework (WLDF) resources44.6 TypeScript Language Service APIAPI for editor integration and language tooling. The Language Service API provides completions, diagnostics...44.4 Apache Tomcat Diagnostics APIServer diagnostics and thread management43.3 Apache Tomcat JMX Proxy APIThe Apache Tomcat JMX Proxy Servlet provides HTTP-based access to JMX MBeans for querying, getting, setting...43.3 Starlink Local Device APISpaceX's officially supported local gRPC API on Starlink hardware, defined in protobuf and published verbat...42.9 Starlink Router Local HTTPS APIAn optional HTTPS server hosted on the Starlink WiFi router itself, enabled through a router config in the ...42.9 Node-RED Diagnostics APIThe Diagnostics API from Node-RED — 1 operation(s) for diagnostics.41.4

Thin 13 Limited public surface area

CarAPI OBD-II Code APIThe CarAPI OBD-II Code API provides search and lookup across more than 9,000 OBD-II diagnostic trouble code...38.8 AristaMD Diagnostic APIThe Diagnostic API from AristaMD — 1 operation(s) for diagnostic.37.4 ezyVet Diagnostics APIDiagnostic requests and results (Standard Diagnostic Integration). (Confirmed integration.)37.3 Clockworks Diagnostics APIThe core-diag container. POST /diagnostics returns the diagnostic records produced by the Clockworks analys...36.8 Ambassador Diagnostics APIAccess diagnostic and health check endpoints for monitoring Ambassador Edge Stack operational status.36.7 Saxo Bank Diagnostics APIThis collection provides endpoints for client diagnostics and can be used to verify HTTP methods. An access...35.4 Circana Complete Why Analytics APIComplete Why delivers fast AI-powered insights so teams know what is working, what is not, and where to act...33.4 BMW Repair and Maintenance APIThe BMW Repair and Maintenance API provides access to maintenance schedules, diagnostic information, and te...33.2 BMW Smart Maintenance APIThe BMW Smart Maintenance API provides real-time vehicle health and maintenance need information by connect...33.2 CarMD Vehicle APICarMD's vehicle API (marketed as CarScan) provides access to OBD-II code definitions, vehicle images, repai...33.1 Vetspire Lab & Diagnostics APIGraphQL operations over the Lab domain - diagnostic lab orders and results linked to encounters and patient...30.3 Everly Health Solutions (PWNHealth) Platform APIThe enterprise lab-connectivity and clinician-oversight API of Everly Health Solutions, the former PWNHealt...27.2 Dropwizard Diagnostics APIJVM diagnostic endpoints.27.0

Emerging 9 Early or largely undocumented

OPNsense Diagnostics APIInterface and system diagnostics.25.1 Elephas Portal APIThe private backend API behind the Elephas Portal, the secure cloud-based web application through which cli...23.4 ShopKey Pro Repair Information SystemShopKey Pro is Snap-on's comprehensive automotive repair information system providing access to OEM repair ...16.1 Snap-on Diagnostics SoftwareSnap-on provides professional diagnostic software for automotive technicians covering 50+ domestic, Asian, ...16.1 SureTrack Expert InformationSureTrack is Snap-on's cloud-based expert knowledge platform for automotive technicians, providing diagnost...16.1 ETWAnalyzer Command Line ToolC# command-line tool published by Siemens Healthineers for analyzing Event Tracing for Windows (ETW) captur...15.3 Clinisys Laboratory Informatics APIClinisys delivers laboratory information systems (LIS) and diagnostic informatics software for clinical, ve...14.8 Thyrocare TechSo Partner API (BTS)Partner order-booking API used by Thyrocare's DSA (Direct Selling Agent) franchise network for booking diag...12.8 Zoetis Vetscan ConnectivityZoetis Vetscan Connectivity provides bidirectional communication between veterinary practice information ma...12.7

Minimal 6 Almost no public developer surface

IDEXX VetConnect PLUS Diagnostic Results APIRetrieve diagnostic results from IDEXX Reference Laboratories and IDEXX in-house analyzers (VetLab Station)...9.7 IDEXX VetConnect PLUS Reference Data APIReference resources that underpin ordering and results - the IDEXX test and panel catalog, analyte/test cod...9.7 Antech Lab Results APIModeled partner-gated surface for delivering completed diagnostic results back to the ordering PIMS, where ...9.6 Heska Analyzer Results APIPartner-gated integration surface for returning completed analyzer results back into the ordering PIMS pati...9.3 RALS Point-of-Care Data Management APIThe RALS (Remote Automated Laboratory Systems) platform provides point-of-care device management and data i...8.7 ISAAC Events APIModeled interface for vehicle and safety events (fault/diagnostic codes, safety-critical events) surfaced t...8.4

Companies reaching this through an API (42)

These companies publish an API, specification or operation carrying “Diagnostics” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

AgiBot Ambassador AMCS Group Apache APISIX Apache Tomcat AristaMD Azure Networking Services Azure Virtual Machines BigPanda BMW Car API (carapi.app) CarsXE Circana Clockworks Analytics Conviva Delinea Dropwizard ezyVet Graphiant ISAAC Instruments KORE Wireless MEDITECH Microsoft Azure Microsoft Azure API Management Microsoft Azure Functions Microsoft Windows Server Node-RED Openwork OPNsense Oracle WebLogic Server Particle Ripple Labs Roku Roper Technologies Saxo Bank Siemens Healthineers Soracom Starlink Tidb TypeScript Veritas NetBackup Vetspire

Score breakdown

Frequency

68.6

log-scaled weighted occurrences

Breadth

6.1

spread across providers

Quality lift

14.8

mean composite of providers using it

Cohesion

9.6

strength of nearest seed neighbor

Where this tag sits

222 providers carry this tag directly, and 224 counting the 2 narrower tags below — 2 more to reach.

Healthcare broader Clinical Laboratory 17 providers Liquid Biopsy 11 providers

Where this tag comes from

Provider tag222

Api tag63

Openapi tag24

Openapi op tag133

Cohort brief

Auto-generated

The 198 providers in the APIs.io catalog tagged Diagnostics, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers

198

all scored

Mean Kin Score

13.8

-10.2 vs catalog 24

Mean Agent Readiness

4.8

-7.6 vs catalog 12.4

Spread

1.8–73.9

median 10.8 · σ 11.5

How the 198 split by band

Exemplar 1Strong 1Developing 7Thin 15Emerging 72Minimal 102

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Contract Governance	4.8	6.5	-1.7	198
Discoverability	56.1	61	-4.9	198
Access Clarity	19.5	26.5	-7	198
Operational Transparency	3.3	14	-10.7	198
Developer Ergonomics	9.8	23.4	-13.6	198
Contract Quality	4.1	20.1	-16	198

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes

Artifact	This cohort	Catalog	Difference
MCP server (any)	7%	10%	-3
MCP server (first-party)	7%	13%	-6
Agent Skills	0%	0%	0
OAuth scopes	7%	11%	-4
Security	98%	96%	+2
Arazzo workflows	0%	2%	-2
Governance rules	2%	13%	-11

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score

1 Vital 73.9
2 Truepill 58.2
3 Qure.ai 53.5
4 Color 52.6
5 LetsGetChecked 50.8
6 MyOme 45.9
7 Agco 44.4
8 Thriva 42.7
9 Slingshot Biosciences 39.7
10 Elysium Health 35

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for tags

7 MCP tools reach this

find_tagsBrowse and filter every tag in the catalog.
get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

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This tag

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All tags

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As a scored cohort

curl "https://apis.io/api/v1/cohorts/tag/diagnostics"

The distribution (Pro)

curl "https://apis.io/api/v1/cohorts/tag/diagnostics/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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Diagnostics

Providers using this tag (222)

APIs with this tag (63)